Paraplegia, Hereditary Spastic

Synonyms

• Familial Spastic Paraplegia
• FSP
• HSP
• Spastic Spinal Familial Paralysis
• Strumpell's Familial Paraplegia
• Strumpell-Lorrain Familial Spasmodic Paraplegia
• Strumpell Disease
• Strumpell-Lorraine Syndrome

Disorder Subdivisions

• Hereditary spastic paraplegia, complicated
• Hereditary spastic paraplegia, uncomplicated ("pure")

General Discussion

Hereditary spastic paraplegia (HSP) is a group of inherited neurological disorders characterized by progressive weakness (paraplegia) and increased muscle tone and stiffness (spasticity) of leg muscles. HSP is also sometimes referred to as familial spastic paraplegia (FSP) or Strumpell-Lorraine syndrome. The age at symptom onset and the degree of muscle weakness and spasticity may be extremely variable from case to case, including among individuals within the same family (kindred). According to reports in the medical literature, symptom onset may occur as early as infancy or as late as the eighth or ninth decade of life; however, symptoms may most often develop during early to mid-adulthood. Initial findings typically include stiffness and relatively mild weakness of leg muscles, balance difficulties, unexplained tripping and falls, and an unusually "clumsy" manner of walking (gait). As the disorder progresses, walking may become increasingly difficult. However, complete loss of the ability to walk is relatively rare.

HSP may be classified into two major subtypes: "uncomplicated" or "complicated" HSP. In individuals with uncomplicated (or "pure") HSP, progressive spastic paraplegia occurs as an isolated, primary finding. In those with complicated HSP, additional neurologic abnormalities are present. Some individuals with uncomplicated HSP may develop muscle spasms and difficulties with bladder control. In those with complicated HSP, associated symptoms and findings may include visual and/or hearing impairment, mental retardation, impaired control of voluntary movements (ataxia), and/or other abnormalities.

According to researchers, changes (mutations) of many different genes may cause HSP. In most cases, such mutations appear to be transmitted as an autosomal dominant trait. More rarely, mutations for HSP may be inherited as an autosomal recessive or X-linked recessive trait. The basic underlying defect or defects in HSP are unknown. However, associated symptoms appear to result from progressive degenerative changes of regions of the spinal cord (corticospinal tracts) that convey motor impulses from the brain to muscles involved in controlling certain voluntary movements
.

Resources

WE MOVE (Worldwide Education and Awareness for Movement Disorders)
204 West 84th Street
New York, NY 10024
USA
Tel: 2128758312
Fax: 2128758389
Email: wemove@wemove.org
Internet: http://www.wemove.org

National Institute of Neurological Disorders and Stroke (NINDS)
31 Center Drive
8A07
Bethesda, MD 20892-2540
Tel: (301)496-5751
Fax: (301)402-2186
Tel: (800)352-9424
Email: braininfo@ninds.nih.gov
Internet: http://www.ninds.nih.gov/

Tom Wahlig Foundation - JENA
Veghestrasse 22
Muenster, Intl 48149
Germany
Tel: 49 251 2007 9120
Fax: 49 251 2007 9122
Email: info@fsp-info.de
Internet: http://www.fsp-info.de

Spastic Paraplegia Foundation
7700 Leesburg Pike
Suite 123
Falls Church, VA 22043
USA
Tel: 7034959261
Email: info@sp-foundation.org
Internet: http://sp-foundation.org

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report.

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email orphan@rarediseases.org

Last Updated: 9/17/2007
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